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Published on: October 24, 2017
Unprecedented highly efficient photoluminescence in a phosphorescent Ag(I) coordination polymer
Haruka Yoshino1, Masaki Saigo2, Kiyoshi Miyata2
1Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan. haruka.yoshino.a2@tohoku.ac.jp.
Abstract:
A luminescent three-dimensional coordination polymer (CP) of [CdII(pmd){AgI(CN)2}2] (1; pmd = pyrimidine) comprising two different coordination modes of Ag+ ions was synthesised herein. 1 exhibited thermochromic luminescence, accompanied by positive thermal elongation of the Ag⋯Ag distance. Moreover, 1 showed a bright phosphorescence with the highest photoluminescence quantum yield (Φem), approximately 60% at room temperature, among previously reported phosphorescent Ag-based CPs or metal-organic frameworks.
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